Re: OT - Biofuels, not so green


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Posted by M Fanoni on Wednesday, May 14, 2008 at 19:59:20 :

In Reply to: Re: OT - Biofuels, not so green posted by David Sherman on Wednesday, May 14, 2008 at 19:40:56 :

The equation is not ruined at all. Sunlight is only a minor factor in the energy that the algae needs to consume. Even so, most areas of the United States still have plenty of natural sunlight to feed algae. The vast majority of the energy it needs comes from the CO2. The energy needed to create artificial sunlight would be only a small fraction of the energy produced by the biowaste. With the algae, no additional CO2 is needed; there are vast amounts available already from power plants and the like. The problem is the burning of refined crude oil is amazingly dirty and getting more and more expensive (and scarce, maybe).

Burning algae biowaste is basically free (it just grows by itself, eats nothing but CO2 and a little sun, and craps out fuel) and it is also very clean to burn. For a portable energy source, algae is hard to beat. For stationary power supply, nuclear is hard to beat. It just seems that people don't have faith in algae and are just plain scared of nuke plants.



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